Material: Made of synthetic polyester.
  
Insulation: Traps body heat with dense fibers.
  
Moisture Wicking: Often designed to keep you dry.
  
Lightweight: Provides warmth without bulk.
  
Versatility: Available in jackets, vests, pants, hats, gloves, and socks.
  
Durability: Maintains softness and shape after washing.
  
Breathability: Some versions allow excess heat and moisture to escape.